Legal, Environmental and Other Contingencies (Narrative) (Details) - USD ($) $ in Millions				3 Months Ended
	Jan. 27, 2016	Oct. 14, 2014	Jan. 23, 2012	Jan. 01, 2016
Loss Contingencies [Line Items]
Proceeds from Legal Settlements	$ 32.6
Convolve and MIT Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Compensatory Damages Sought				$ 800.0
Alexander Shukh Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency Damages Sought Amount in Excess				75.0
LEAP Co., Ltd. [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value				$ 38.0
Western Digital Corp [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount			$ 525.0
Litigation Settlement, Amount, Including Interest			$ 630.0
Litigation Settlement, Amount, Award Interest			10.00%
Litigation Settlement, Amount, Partial Payment		$ 773.0